Lower Griffin Creek Restoration Project
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The objective of the project is to improve salmon habitat & water quality in lower Griffin Creek. Activities include livestock exclusion fencing; placement of woody debris; riparian vegetation planting; channel reconfiguration to restore natural stream meander; increasing frequency & size of pools; adding off-channel habitat for rearing & flood refuge; and adding a set-back berm 100 ft from the channel to prevent sheet flow from flooding pastures & stranding juvenile fish. Griffin Creek is one of the most productive salmon streams in the entire Puget Sound area - five species of Pacific salmon utilize the lower mile for spawning. Coho spawn & rear throughout the entire system. According to WDFW escapement surveys from 1984-1993, 20% of Coho in the Snohomish Basin come from Griffin Creek. Griffin Creek is thus the largest contributor to the Coho population in the entire Snohomish basin. Protection of this resource is critical to the continued survival of Coho salmon in King County. Presently, salmon habitat in the first river mile is in poor condition. The riparian buffer is too narrow & fails to provide adequate canopy cover. The channel has been straightened over time & side channels eliminated. Few pieces of large woody debris are present in the stream. The stream has breached its banks in some places. Landowners are willing participants in this project, and much work has already been done at the site, including restoration of 350 ft of streambank.
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General Area:
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Lower Griffin Creek in King County, at confluence with Snoqualmie River about one mile south of Carnation, WA.
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Waterbody:
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Griffin Creek
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County:
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King
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Legislative District:
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12
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Congressional District 2022:
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08
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Salmon Recovery Regions:
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Puget Sound
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Watershed Administrative Unit:
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Griffin Creek
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HUC8:
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Snoqualmie (17110010)
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WRIA:
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Snohomish
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Sections:
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28
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Township:
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T25NR07E
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Coordinates:
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47.61688072
-121.91228853
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| Worksite Name | Scope of Work | Actual Restoration Cost |
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Lower Griffin Creek - install livestock (#1)
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Architectural & Engineering (A&E), Fencing (C.5.d.1), Obtain permits, Planting (C.5.c.1), Riparian Plant removal / control (C.5.h.1), Wetland improvement/ restoration (C.8.e.1)
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$25,267
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| | Total | $25,267 |
Amounts may not be complete
| Worksite Name | | Property Name | Landowner Type |
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Lower Griffin Creek - install livestock (#1)
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Property 1 - Property - Worksite #1
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Private
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| | | | Total |
Amounts may not be complete
| | Category / Work Type / Metric | Final |
Restoration Metrics (rolled up from Worksite level) |
Riparian Habitat Project |
| Riparian Plant removal / control (C.5.h.1) |
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Acres of riparian treated for plant removal/control (C.5.h.3)
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4.0
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| Milestone Name | Target Date | Description |
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Project Start
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07/29/1999
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HPA expires Aug 30th
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Permits Complete
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08/31/1999
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Landowner Agreement to RCO
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08/31/1999
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Agreement End Date
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10/31/2000
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Final Docs/Billing to Mgmt Agy
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12/31/2000
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